12799845 has 48 divisors (see below), whose sum is σ = 23587200. Its totient is φ = 6407808.

The previous prime is 12799837. The next prime is 12799847. The reversal of 12799845 is 54899721.

It is not a de Polignac number, because 12799845 - 2³ = 12799837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12799845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12799847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85831 + ... + 85979.

It is an arithmetic number, because the mean of its divisors is an integer number (491400).

Almost surely, 2^12799845 is an apocalyptic number.

12799845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12799845 is a deficient number, since it is larger than the sum of its proper divisors (10787355).

12799845 is a wasteful number, since it uses less digits than its factorization.

12799845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 263 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 12799845 is about 3577.6871020256. The cubic root of 12799845 is about 233.9204748392.

The spelling of 12799845 in words is "twelve million, seven hundred ninety-nine thousand, eight hundred forty-five".